463943-99-9Relevant academic research and scientific papers
[5]Helicenes by iterative radical cyclisations to arenes
Harrowven, David C,Nunn, Michael I.T,Fenwick, David R
, p. 3189 - 3191 (2002)
The paper describes a synthesis of 1,2,3,12,13,14-hexamethoxy[5]helicene 1. The synthesis features two sp2-sp2 bond forming reactions, each involving a 6-exo/endo-trig cyclisation of an aryl radical intermediate to an arene.
